goodwin



'thtited giedre @sind @mitra .Letters Patent No. 95,464, dated October5, 18,69.

. v WASH-BOILER.

The Schedule referred to in these Letters Patent and making part of thesame.

Be it known that I, SA. GOODWIN, of the city of `lui'alo, in theState ofNew York, have invented an Ali'nprovement in Wash Boilers; and I dodeclare that the. followingis a full and exact description thereof,reference being had to the accompanying drawings, and to the letters ofreference marked thereon.

This invention relates to the class of' wash-boilers described in mypatent of October 20, 1868, No. 83,278, and consists in corrugating thefalse bottom of such boiles for the purposes hereinafter mentioned.

To enable others skilled in the art to make and use my invention, I willproceed to describe its construction and operation. 4

Figure I represents an end view of a boiler, of an oblong form, with thecorrugated false bottom in place.

Figure 'II is a perspective view of the n corrugated false bottom.

Figure III is a longitudinaal vertical section through the centre of thetube D, showing the bottom of the corrugation by the line d, and the topby theJine e.

Figure IV is a vertical longitudinal side view, showing the flanges A',constituting one side ofthe steamchamber.

K is a boiler, of any proper form.

A is the corrugated false bottom.

l), a tube, connecting the steam-chamber under A, with the space in theboiler above the clothes.

(l is the trough or bottom of the corrugations.

c is the roof or top of the corrugations. L

represents the ends of the' corrugations partly closed, leaving only'spaces C for the admission of wa ter into the steam-chamber under' thefalse bottom.

The operation is as follows:

Soap-water or suds is put into the boiler so as to fill thesteam-chamber and cover the false bottom.

` The clothes are then spread upon the topsof the cor- I rugations. Thecover of the boiler is then put on,

and the whole placed over the fire. XVhen the water begins to boil, itis forced up the tube D, and falls upon the clothes, and percolates, bygravity, `down through them into the troughs of the con'ugations, andflows through or Aalong them toeach end of the boiler, whore it reentersthe chamber from whence it started, ythrough the spaces C, and is vagainforced up in a continuous circulation.

By preference, the false bottom is pressed, stamped, or rolled out ofmetal,as copper or tin. The objects of the coirugations are twofold:

First, toprovide for the free and even'drainage of the clothes, so thatthe water will peroolate through them at all points alike, the saidcoirugatons answering in this particular all the purposes of, a rack,and being much cheaper' to make; and

Second, to stiffen or add strengthto the metalof which the false bottomis made, a .well-known effect of corrugatiug sheet-metal. l

I do not here claim, nor do I limit myselfto the particular constructionherein speciedras it is obvious that different forms of removable 0rfalse bottoms may be corrugated.

p I do not, however, claimcorrugating the real bottom of a wash-boiler,as I am aware that this is not new.

I am also aware that removable ribbed slides have been made, to befitted vertically within the endsv of a wash-boiler, but these I do notclaim, as they form no part of my invention.

What I do claim as my invention, and desire to secure by Letters Patent,is-

A corrugated false bottom, in combination -With a wash-boiler,substantially as and for the purposes set forth.

S. A. GOODWIN.

Witnesses GEO. D. EMERSON, H. H. TWICHELL.

